Oil-pressure feeding device



1,641,221 Slept. 61- 1 c. H. EYER OIL PRESSURE FEEDING DEVICE Filed Aug. 9 2 Sheets-Sheet l INVENTOR Se t. 6, 1927- H. EYER OIL PRESSURE FEEDING DEvIcE Filed Aug. 3. 1926 2 Sheets-Sheet 2 (/zarlar RE INVENT.OR

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O M ATTORNEY Patented Sept. 6, 1927.

PATENT orrics.

CHARLES H. EYER, OF WEST NEW YORK, NEW JERSEY.

OIL-PRE SSURE FEEDING DEVICE.

Application filed August 3, 1926. Serial No. 126,827.

" .This invention relates to lubricating systems as applied to gasoline engines and more particularly to such as are installed in self-propelled vehicles of the automobile type. v 7

Such engines are invariably of the multi cylinder class having a crank shaft disposed in a horizontal plane, ,its several cranks dipping into an oil chamber in the lower crank case at each revolution, in timed relation, to pick up a small quantity of oil and by a series of splashes provide lubrication to the cylinders and bearings.

This system works well in theory and also in practice during the time when a copious supply of fresh, clean oil is supplied to the chamber and the car is operated over a substantially level surface.

Eventually however the oil becomes thickened by accumulation of foreign particles, due to wear and abrasion of parts, entry of extraneous matter and the like, not infrequently of such nature as to clog the inlet, and on the other hand occasionally the oil becomes diluted by mixture with gasoline fromleaky connections, in either case reducing the functional value of the oil as a lubricant or destroying it altogether.

It is also well known that as liquids seek tomaintain their level, the oil will flow by gravity to the lowest part of the chamber when the vehicle is inclined, as in going up or down a hill, thus depriving certain of the cranks and cylinders from receiving their proper and proportional share of lubrication'to their detriment, causing excessive wear, heating, noise and ultimate ruin. Probably no other assemblage of mechanism is operated under conditions which are so" much toiits disadvantage as a motor car or where the necessity of ample and automatic lubrication is more urgent.

It is therefore one object of the present invention to provide means for causing a positive circulation of oil through the crank case and transmission chambers, entering the same at the front, rather than at the rear as is usual, so that in hill climbing the forward cylinders as well as the rear are effectively lubricated.

A further feature is in the provision of meansfor supplying a constant stream of oil under pressure through the breather pipe moved.

to the timing gears and crank case and also directly to the transmission case at a point above the several bands therein.

Another advantage is in supplying an oil pressure gage, preferably on the dash board, where it can be readily seen by the operator, this gage indicating the condition of the oil, if thinned or reduced by gasoline, the pressure under which it is supplied, and also if the supply be exhausted or'cut off.

Finally it is proposed to furnish the device by which the system is operated in the form of an attachment applicable to old as well as new motor cars by the. substitution of a single new part, requiring no machining or refitting, together with the placement of a gage and simple pipe connectlons.

These several valuable and practical features are accomplished'by the novel construction and arrangement of simple parts hereinafter described and shown in the accompanying drawings, forming a material portion of this disclosure, and in Which:

Figure 1 is a general side elevational view showing a complete operating system as installed in a Ford motor car, the showing being largely diagrammatic.

Figure 2 is a side View of the timing case and oil pressure pump attachment.

Figure 3 is a front elevational view of the same with the pump casing cover re- Figure 4 is a transverse sectional view 7 taken on line 4c4 of Figure 5.

Figure 5 is a sectional View taken on line 55 of Figure 4.

In Figure 1 is a diagrammatically shown a transmission case 10, supplied with a remov- Y and timing gear case, these elements all be ing of the usual standard type of construction.

In the present embodiment a new gear case 16 is substituted for that originally installed, the same being secured by the original bolts in the same openings in the casing.

Enclosed in the casing, which has a cover 17, is a spur pinion 18 in mesh with the cam or timing gear 19 driven by a pinion of half its size fixed on the outer portion of the crank shaft, the pinion 18 also meshing with a smaller pinion 2O fixed on a spindle 21 housed in the upper part of the case and extending outwardly towards the front through a stufi'ing box 22. Rigidly bolted to the cover plate 17 is an o'ttset outstanding bracket 23 supporting an oil pump casing 2% into which the spindle 21 enters through a stuffing box 25.

The squared end of the spindle 21 has fixed on it a'toothed wheel 26 meshing with a mating wheel 27 rotatable on a stud 28 set in thefbody of the casing which is provided with a cover plate 29 held removably by screws as shown, the ensemble constituting a common form of rotary pump.

In the side of the casing 24 is an opening for priming'the pump when initi ally started, the same being normally closed by a plug 30.

r The casing has the shape of a flattened ellipse disposed at an angle to its support and at its upper end is a raised projection ,31'containing a pair of threaded inlet and outlet openings respectively 32 and 33 communicating with ports 34 and 35 disposed in the casing midway between and at the sid-es'of the chambers in which the toothed iotors'26 and 27 revolve, it being understood that the points of the wheel teeth merely clear the walls of their chambers.

The inlet opening 32 is connected by a nipple and union with a pipe 36 leading to similar connections communicating with a hollow annulus 37 fixed on atubular plug entering the drain opening in the casing outlet 12 to receive oil as collected therein.

The outlet opening 33 is connected with a T fitting 38 one branch of which has engage in it a pipe 10 communicating with an opening through the cover plate 11 to supply oil to the mechanism in the casing 10, and a. branch 10 of the pipe leads downward through the breather pipe to supply the timing gears and dippers with a constant current of oil. 7

The other branch of the T 38 is connected with a pipe 42 leading to an oil pressure gage 43 set in the vehicle dash board 44 whereby the pressure in the oil system by the pump can at any time be seen, such pressure being preferably maintained at approximately eight pounds per square inch.

Should the pump fail to properly operate from any cause, as clogging of the'pipes, or insufllcient supply, this fact is at once apparent; also in case of the oil becoming diluted or thinned, the pressure obviously will fall, calling attention to the fact that proper lubrication is not being supplied.

It will be clear that a suitable oil stream will be provided whenever the motor is operating and that the sameis entirely independent of any inclined position that the car may assume.

as changes of construction could be made within the scope of the invention, it is intended that all matter contained in the foregoing description or shown in the accompanying drawings shall be interpreted as illustrative and not in a limiting sence.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent, is c i In an oil feeding'system for a motor car of the planetary gear type, in combination with a generatorgear, a rotary pump, and an auxiliary gear rigidly mounted upon a shaft connected with the pump gears, said auxiliary gear being in mesh with the generator gear, so that whenever the motor is running the pump will operate, and a casing for the auxiliary gear and the generator gear, said casing having holes coinciding with the bolt holes in the standard crank case, a cover for said casing, and a bracket mounted on said cover to support the pump.

Signed at New York, in the county of New York and State of New York, this29th day of: July, A. D. 1926. Y

CHARLES H. 

